Elastic properties of self-compacting concrete modified with nanoparticles: Multiscale approach

• Autorzy: Stefaniuk D. , Niewiadomski P. , Musial M. , Lydzba D.

Identyfikatory

DOI

10.1016/j.acme.2019.06.006

• Języki publikacji: EN

Abstrakty

EN

Advances in cementitious composites and nanotechnologies have led to the development of self-compacting concrete (SCC) modified with nanoparticles. SCC with Al2O3 nanoparticles was used in this study. In addition, a reference sample of SCC without an addition of nanoparticles was investigated. First, the micro-mechanical properties of each phase of the composites were examined using the statistical nanoindentation techniques and deconvo-lution. Then, the interfacial transition zone (ITZ) was investigated using line indentation and X-ray microCT. The results indicated that the ITZ played no significant role in the compo-sites. Subsequently, modified Mori–Tanaka and self-consistent homogenization schemes, accounting for random variability of constituent properties, were applied to evaluate the overall elastic properties of the composites. Then, macroscale laboratory (uniaxial compres-sion) tests were carried out to verify the adopted approach. The results of the micro- and macroscale tests showed that the proposed laboratory investigation procedure and homog-enization approach were proper. Finally, the modified Mori–Tanaka scheme was used to verify the influence of material composition on the effective elastic modulus of SCC with Al2O3 nanoparticles.

Słowa kluczowe

EN

microstructure; interfacial transition zone; characterization; elastic moduli; micromechanics

PL

mikrostruktura; moduł elastyczny; mikromechanika

• Wydawca: Springer ; Wrocław University of Science and Technology
• Czasopismo: Archives of Civil and Mechanical Engineering
• Rocznik: 2019
• Tom: Vol. 19, no. 4
• Strony: 1150--1162
• Opis fizyczny: Bibliogr. 44 poz., rys., tab., wykr.

Twórcy

autor

Stefaniuk D.

• Wroclaw University of Science and Technology, Faculty of Civil Engineering, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland

autor

Niewiadomski P.

• Wroclaw University of Science and Technology, Faculty of Civil Engineering, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland

autor

Musial M.

• Wroclaw University of Science and Technology, Faculty of Civil Engineering, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland

autor

Lydzba D.

• Wroclaw University of Science and Technology, Faculty of Civil Engineering, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland

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Uwagi

PL

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020)